Basic component of life and biodiversity(11) Quiz

1. Selaginella is

A. homosporous B. heterosporous C. non vascular D. seed plant

2. Which plant stores food in tuber?

A. Thorn B. Tendril C. Tuber D. Phyllode

3. Which bryophyte structure performs water absorption?

A. Rhizoids B. Root hairs C. Leaves D. Stem

4. Which algae is known as green algae?

A. Chlorella B. Polysiphonia C. Fucus D. Ulothrix

5. Algae are mostly found in

A. deserts B. aquatic habitats C. mountains D. soil only

6. Mycorrhiza is association between fungi and

A. algae B. bacteria C. roots of plants D. stems

7. Primary mycelium is

A. diploid B. haploid C. triploid D. multinucleate

8. Which type of forest covers the largest area in Nepal?

A. Tropical deciduous forest B. Temperate broadleaf forest C. Alpine forest D. Coniferous forest

9. Fungi causing athlete's foot belong to which group?

A. Ascomycetes B. Zygomycetes C. Basidiomycetes D. Chytridiomycetes

10. Algae causing harmful algal blooms are usually rich in?

A. Nitrogen and phosphorus B. Potassium C. Carbon D. Calcium

11. Which is a symbiotic association?

A. Lichen B. Rhizopus on bread C. Albugo on mustard D. Puccinia on wheat

12. Which feature distinguishes fungi from plants?

A. cell wall B. eukaryotic cell C. absorptive nutrition D. multicellularity

13. Bacterial reproduction mainly occurs by

A. budding B. fragmentation C. binary fission D. spore formation

14. Placentation refers to arrangement of

A. ovules B. sepals C. petals D. stamens

15. Pteridophytes evolved from?

A. Bryophytes B. Gymnosperms C. Angiosperms D. Algae

16. The scientific name of mango is

A. Mangifera indica B. Musa paradisiaca C. Oryza sativa D. Triticum aestivum

17. Mode of nutrition in bacteria may be

A. autotrophic B. heterotrophic C. saprophytic D. all of these

18. Sex organs in bryophytes are

A. anther and ovary B. antheridium and archegonium C. sporangium and capsule D. cone and flower

19. ICBN deals with

A. animal names B. plant names C. bacterial names D. virus names

20. What is the main role of chlorophyll in plants?

A. Absorbing light energy B. Producing glucose C. Converting CO2 into oxygen D. Transmitting genetic information

21. Sunflower belongs to family

A. Asteraceae B. Rosaceae C. Fabaceae D. Liliaceae

22. Which root system is found in dicots?

A. Tap root B. Fibrous root C. Adventitious D. Prop root

23. Gymnosperm leaves are adapted to reduce

A. photosynthesis B. water loss C. reproduction D. transpiration

24. Leaves of pteridophytes are called

A. fronds B. phyllodes C. scale leaves D. needles

25. Red color of red algae is due to

A. chlorophyll B. carotene C. phycoerythrin D. xanthophyll

26. Which modification stores food?

A. thorn B. tendril C. tuber D. phyllode

27. Which bacterial group can perform photosynthesis?

A. Proteobacteria B. Cyanobacteria C. Actinobacteria D. Firmicutes

28. The main function of root is

A. photosynthesis B. absorption of water C. transpiration D. reproduction

29. Which is a saprophytic fungus?

A. Albugo B. Puccinia C. Rhizopus D. Alternaria

30. Floral formula represents

A. flower diagram B. numerical arrangement C. flower parts symbolically D. reproductive cycle

31. Which bacteria are prokaryotic?

A. E.coli B. Amoeba C. Paramecium D. Chlamydomonas

32. Pteridophytes like Selaginella are heterosporous because they produce?

A. Male and female spores B. Only male spores C. Only female spores D. Both spores identical

33. Rice is scientifically known as

A. Oryza sativa B. Triticum aestivum C. Zea mays D. Hordeum vulgare

34. Placentation in mustard is?

A. Marginal B. Axile C. Parietal D. Free central

35. Which bacteria are obligate anaerobes?

A. Clostridium B. E.coli C. Bacillus D. Rhizobium

36. Pteridophytes have vascular tissue but lack?

A. Seeds B. Sporophyte C. Gametophyte D. Roots

37. Angiosperms differ from gymnosperms by presence of

A. seeds B. vessels C. flowers and fruits D. tracheids

38. The dominant generation in pteridophytes is

A. gametophyte B. sporophyte C. haploid D. seed

39. Which algal pigment is responsible for red coloration in red algae?

A. Phycoerythrin B. Carotene C. Chlorophyll a D. Fucoxanthin

40. Which venation indicates dicot?

A. parallel B. reticular C. circular D. none

41. Stem performs conduction through?

A. Cortex B. Pith C. Xylem and Phloem D. Epidermis

42. Which gymnosperm is dioecious?

A. Pinus B. Cycas C. Ginkgo D. Cedrus

43. Which gymnosperm produces fleshy seeds resembling fruits?

A. Pinus B. Ginkgo C. Gnetum D. Cycas

44. Who discovered virus?

A. Robert Koch B. Ivanowsky C. Pasteur D. Leeuwenhoek

45. Which bacteria causes curd formation?

A. Lactobacillus B. Rhizobium C. Nitrosomonas D. E.coli

46. Bacteria in root nodules fix nitrogen in which form?

A. Nitrate B. Ammonia C. Nitrite D. Nitrogen gas

47. What is the main feature of pteridophytes?

A. Seeds B. Vascular tissue C. Flowers D. Roots

48. Which part of flower develops into fruit?

A. ovule B. stamen C. ovary D. petal

49. Taxon refers to

A. rank in classification B. single species C. group of organisms D. unit of classification

50. Gymnosperms are called 'naked seed plants' because?

A. Seeds are exposed on cone scales B. Seeds are inside ovary C. Seeds are microscopic D. Seeds are non-viable